Productnaam : Torich GB / T14975 304/316 naadloze buizen van roestvrij staal voor structuur
Standaard : GB / T14975
Grootte Bereik : OD: 3-420mm WT: 0.5-50mm Lengte : 1-12mm of volgens de daadwerkelijke toepassing en de productie van klanten.
Toepassing : voor structurele doeleinden
Staal grade :
Technologie : koudgewalst warmgewalst koud getrokken
Kenmerk:
Goede rondloopnauwkeurigheid
Goede oppervlaktekwaliteit
Goede OD- en ID-tolerantie
Hoge precisie
Stabiele kwaliteit
Gladde ruwheid
KWALITEITSBORGING VAN TORICH
Tabel 1 De tolerantie van de nominale buitendiameter en wanddikte- eenheid: mm
|
Hot
Roll(Extrusion.Expansion)Steel Tube
|
Cold
Drawn(Roll) Steel Tube
|
|
Diamension
|
Tolerance
|
Diamension
|
Tolerance
|
|
Ordinary
Level PA
|
High
Level PC
|
Ordinary
Level PA
|
High
Level PC
|
|
Nominal
Outer Diameter
D
|
＜76.1
|
±1.25%D
|
±0.60
|
Nominal
Outer Diameter
D
|
＜12.7
|
±0.30
|
±0.10
|
|
76.1~＜139.7
|
±0.80
|
12.7~＜38.1
|
±0.30
|
±0.15
|
|
139.7~＜273.1
|
±1.5%D
|
±1.20
|
38.1~＜88.9
|
±0.40
|
±0.30
|
|
88.9~＜139.7
|
±0.9%D
|
±0.40
|
|
273.1~＜323.9
|
±1.60
|
139.7~＜203.2
|
±0.80
|
|
203.2~＜219.1
|
±1.10
|
|
≥323.9
|
±0.6%D
|
219.1~＜323.9
|
±1.60
|
|
≥323.9
|
±0.5%D
|
|
Nominal
Wall Thinckness
S
|
All
Wall Thickness
|
+15%S
-12.52%S
|
±12.5%S
|
Nominal
Wall Thinckness
S
|
All
Wall Thickness
|
+12.5%S
-10%S
|
±10%S
|
Tabel 2 Tolerantie van minimale wanddikte- eenheid: mm
|
Production Method
|
Diamension
|
Tolerance
|
|
Ordinary Level PA
|
High Level PC
|
|
Hot Roll(Extrusion.Expansion)Steel
Tube
W-H
|
Smin＜15
|
+27.5%
Smin
0
|
+25%
Smin
0
|
|
Smin≥15
|
+35%
Smin
0
|
|
Cold Drawn(Roll) Steel
Tube
W-C
|
All Wall Thickness
|
+22%
S
0
|
+20%
S
0
|
Tabel 3 Graad en chemische component
|
No.
|
Unified
Digital Code
|
Grade
|
Chemical
Component(Quality Fraction)/%
|
|
C
|
Si
|
Mn
|
P
|
S
|
Ni
|
Cr
|
Mo
|
Cu
|
N
|
|
1
|
S30210
|
12Cr18Ni9
|
0.15
|
1.00
|
2.00
|
0.040
|
0.030
|
8.00~10.00
|
17.00~19.00
|
-
|
-
|
0.10
|
|
2
|
S30408
|
06Cr19Ni10
|
0.08
|
1.00
|
2.00
|
0.040
|
0.030
|
8.00~11.00
|
18.00~20.00
|
-
|
-
|
-
|
|
3
|
S30403
|
022Cr19Ni10
|
0.030
|
1.00
|
2.00
|
0.040
|
0.030
|
8.00~12.00
|
18.00~20.00
|
-
|
-
|
-
|
|
4
|
S30458
|
06Cr19Ni10N
|
0.08
|
1.00
|
2.00
|
0.040
|
0.030
|
8.00~11.00
|
18.00~20.00
|
-
|
-
|
0.10~0.16
|
|
5
|
S30478
|
06Cr19Ni9NbN
|
0.08
|
1.00
|
2.50
|
0.040
|
0.030
|
7.50~10.50
|
18.00~20.00
|
-
|
-
|
0.15~0.30
|
|
6
|
S30453
|
022Cr19Ni10N
|
0.030
|
1.00
|
2.00
|
0.040
|
0.030
|
8.00~11.00
|
18.00~20.00
|
-
|
-
|
0.10~0.16
|
|
7
|
S30908
|
06Cr23Ni13
|
0.08
|
1.00
|
2.00
|
0.040
|
0.030
|
12.00~15.00
|
22.00~24.00
|
-
|
-
|
-
|
|
8
|
S31008
|
06Cr25Ni20
|
0.08
|
1.50
|
2.00
|
0.040
|
0.030
|
19.00~22.00
|
24.00~26.00
|
-
|
-
|
-
|
|
9
|
S31252
|
015Cr20Ni18Mo6CuN
|
0.02
|
0.80
|
1.00
|
0.030
|
0.010
|
17.50~18.50
|
19.50~20.50
|
6.00~6.50
|
0.50~1.00
|
0.18~0.22
|
|
10
|
S31608
|
06Cr17Ni12Mo2
|
0.08
|
1.00
|
2.00
|
0.040
|
0.030
|
10.00~14.00
|
16.00~18.00
|
2.00~3.00
|
-
|
-
|
|
11
|
S31603
|
022Cr17Ni12Mo2
|
0.030
|
1.00
|
2.00
|
0.040
|
0.030
|
10.00~14.00
|
16.00~18.00
|
2.00~3.00
|
-
|
-
|
Tabel 4 Mechnische eigenschappen
|
No.
|
Serial number
|
Steel
Grade
|
Mechnical Properties
|
Hardness
|
|
tensile strength
Rm/MPa
|
elongation strength
Rp0.2/MPa
|
elongation after
fracture
A/%
|
HBW/HV/HRB
|
|
≥
|
≤
|
|
1
|
S30210
|
12Cr18Ni9
|
520
|
205
|
35
|
192HbW/200HV/90HRB
|
|
2
|
S30438
|
06Cr19Ni10
|
520
|
205
|
35
|
192HbW/200HV/90HRB
|
|
3
|
S30403
|
022Cr19Ni10
|
480
|
175
|
35
|
192HbW/200HV/90HRB
|
|
4
|
S30458
|
06Cr19Ni10N
|
550
|
275
|
35
|
192HbW/200HV/90HRB
|
|
5
|
S30478
|
06Cr19Ni9NbN
|
685
|
345
|
35
|
-
|
|
6
|
S30453
|
022Cr19Ni10N
|
550
|
245
|
40
|
192HbW/200HV/90HRB
|
|
7
|
S30908
|
06Cr23Ni13
|
520
|
205
|
40
|
192HbW/200HV/90HRB
|
|
8
|
S31008
|
06Cr25Ni20
|
520
|
205
|
40
|
192HbW/200HV/90HRB
|
|
9
|
S31252
|
015Cr20Ni18Mo6CuN
|
655
|
310
|
35
|
220HbW/230HV/96HRB
|
|
10
|
S31608
|
06Cr17Ni12Mo2
|
520
|
205
|
35
|
192HbW/200HV/90HRB
|
|
11
|
S31603
|
022Cr17Ni12Mo2
|
480
|
175
|
35
|
192HbW/200HV/90HRB
|
|
12
|
S31609
|
07Cr17Ni12Mo2Ti
|
515
|
205
|
35
|
192HbW/200HV/90HRB
|
|
13
|
S31668
|
06Cr17Ni12Mo2N
|
530
|
205
|
35
|
192HbW/200HV/90HRB
|
|
14
|
S31653
|
022Cr17Ni12Mo2N
|
550
|
245
|
40
|
192HbW/200HV/90HRB
|
|
15
|
S31658
|
06Cr17Ni12Mo2N
|
550
|
275
|
35
|
192HbW/200HV/90HRB
|
|
16
|
S31688
|
06Cr18Ni12Mo2Cu2
|
520
|
205
|
35
|
-
|
|
17
|
S31683
|
022Cr18Ni14Mo2Cu2
|
480
|
180
|
35
|
-
|
|
18
|
S31782
|
015Cr21Ni26Mo5Cu2
|
490
|
215
|
35
|
192HbW/200HV/90HRB
|
Tabel 5 Testsitems en monsterhoeveelheid stalen buizen
|
Number
|
Testing items
|
Sampling quantity
|
|
1
|
Chemical composition
|
1 sample from each furnace
|
|
2
|
Tensile test
|
1 sample from each of two steel tubes on each batch
|
|
3
|
Hardness test
|
1 sample from each of two steel tubes on each batch
|
|
4
|
Ultrasonic testing
|
ALL
|
|
5
|
Hydraulic test
|
ALL
|
|
6
|
Flattening test
|
1 sample from each of two steel tubes on each batch
|
|
7
|
Expansion test
|
1 sample from each of two steel tubes on each batch
|
|
8
|
Eddy current testing
|
ALL
|
|
9
|
Intergranular corrosion test
|
1 sample from each of two steel tubes on each batch
|
China De fabrikanten van de roestvrij staalbuis, onze Uitlaatbuis van de Roestvrij staal, Gelaste Staalbuis, de Ronde Pijp van het Roestvrij staal, de Roestvrij staalbuis van het Roestvrij staal, de Roestvrije Gerolde Buis, de Duplexroestvrij staalbuis zijn goed in kwaliteit en concurrerend in prijs.
Contact Now
